Metals -> Precision alloy -> Precision alloy for elastic elements Characteristics of the material 42NKHTYUÀ ( 42NHTJUÀ, 42ÍÕÒÞÀ ).
Material : 42NKHTYUÀ ( 42NHTJUÀ, 42ÍÕÒÞÀ ) Classification : Precision alloy for elastic elements
Chemical composition in % of the material 42NKHTYUÀ ( 42NHTJUÀ, 42ÍÕÒÞÀ ) . Fe C Si Mn Ni S P Cr Ti Al 45.61 - 49.9 max 0.05 0.4 - 0.7 0.3 - 0.6 41.5 - 43.5 max 0.02 max 0.02 5 - 5.6 2.3 - 2.9 0.6 - 1
Mechanical properties under Ò=20o Ñ of the material 42NKHTYUÀ ( 42NHTJUÀ, 42ÍÕÒÞÀ ) .
Assortment
Dimension
Direct.
s â
s T
d 5
y
KCU
Heat treatment - mm - MPa MPa % % kJ / m2 - 1300-1400 5 Guenching 910o C,Ageing 700o C, Wire 1080-1375
Physical properties of the material 42NKHTYUÀ ( 42NHTJUÀ, 42ÍÕÒÞÀ ) . T E 10- 5 a 10 6 l r C R 10 9 Grade MPa 1/Grade Watt/(m·Grade) kg/m3 J/(kg·Grade) Ohm·m 20 1.79 9
Specification :
Mechanical properties :
s â - Tensile strength , [MPa]
s T - Yield stress, [MPa]
d 5 - Specific elongation at fracture , [ % ]
y - Reduction of area , [ % ]
KCU - Impact strength , [ kJ / m2 ]
HB - Brinell hardness , [MPa]
Physical properties :
T - Test temperature , [Grade]
E - Young modulus , [MPa]
a - Coefficient of linear expansion
(range 20o - T ) , [1/Grade]
l - Termal (heat) condition coefficient , [Watt/(m·Grade)]
r - Density , [kg/m3 ]
C - Specific heat
( range 20o - T ), [J/(kg·Grade)]
R - Electrical resistance , [Ohm·m]
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